flex++
fast lexical analyzer generator
RUN apt-get update && \
apt-get install -y flex
RUN apt-get update && \
apt-get install -y flex
RUN apk add flex
RUN pacman -S --noconfirm flex
RUN apt-get update && \
apt-get install -y flex
RUN yum install -y flex
RUN dnf install -y flex
RUN apt-get update && \
apt-get install -y flex